Pollution is increasing and is extremely harmful to the environment. The water is already contaminated, and it won?t stop anytime soon. One of the many ways countries try to control water pollution is to treat and decontaminate industrial sludge before it enters the ocean or wider body of water. This is where wastewater treatment comes into play. This is a process that removes contaminants such as soil, stones, and other contaminants from wastewater or sewage before the water is released into the ocean or, in some cases, recycled. Industrial wastewater treatment is used to purify wastewater generated by various industries.